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- Alfred A. Montapert, Philosopher.
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gmatprep question
Source: Beat The GMAT — Data Sufficiency |
GMAT/MBA Expert
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Ian Stewart
- GMAT Instructor
- Posts: 2623
- Location: Montreal
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- GMAT Score:780
If xy = -18, one of x or y is negative, the other positive. Certainly the negative number is smaller than the positive number. So Statement 1, which tells us x is negative, is sufficient alone. Statement 2 is not sufficient, since x could be 9, and y could be -2, or vice versa.
For online GMAT math tutoring, or to buy my higher-level Quant books and problem sets, contact me at ianstewartgmat at gmail.com
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